Improvement in grain-separators



PATENTED NOV. 18, lSG-Zv.

T. W. IRVIN.

GRAIN SEPARATOR.

3 SHEETS-'SHEET 1.

1HE Nonms venas co. Paomuwo.. wAsmNs'cN, o, cy

No; 36,980. PATENTED Nov. v18, 1862.

T. W. IRVIN.

G RAIN SBPARATOR.

3 SHEETS-SHEET 2.

No. 36,980. PATENTED NOV. 18, 1862.

' T. W. IRVIN.

GRAIN SEPARATOR.

s SHEETS-SHEET s.

UNITED STATES PATENT' OEEICE.

THOMAS W. IRVIN, OF MARION COUNTY, INDIANA, ASSIGNOR TO WILLIAM O. HOLMES AND EDWARD DUNN, OF SAME ILAOE.

lMPPtOVEMENT IN GRAIN-SEPARATORS.

Specification forming part of Letters Patent No. 36.980. dated N. vember 18, 1862.

To all whom i6 may concern:

Beit known that I, THOMAS W. IRVIN, of Marion county, State of Indiana, have invented new and uset'ul improvements on suction-tubes for cleaning and separating wheat and other small grain; and l do hereby de clare that the following is a full, clear, and exact description ofthe construction and operation of the same, reference being had to the annexed drawings, making a part ot' this specification, in which-.-

Figure 1 is'aperspective view of a suc tion-tube with my improvements; Fig. 2, a section. ot' the same; Fig. 3, a crosssection, and Fig. 4 a view of the corrugated hopper.

My invention consists in usinga diverging corrugated hopper, K. to insert the grain into the suction-tube F. The corrugations ot' the hopper extend clear across the. entire hopper, which has the sume width as the tube. The corrugations run lengthwise, thereby spreading the wheat clear across the tube F and exposing the wheat tok a cross-draft of the wind entering the tube G. I forni an angle 4in tube F for the purpose of throwingthe wheat in the. center of the tube, and thereby inereas` ing the facilities ofcleaning the wheat. Valve H serves as a regulator of the ingress ot' air into the tube. Valve O prevents a' too large' accumulation ot' grain at the lower valve, a, which valve a will open and close at intervals, owing to the weightof grain upon it. The second quality ot wheat, light wheat, passes through these valves O a, while the good Wheat drops through the tube G.

L represents a curved metal covering of the upper part of tube F. The cheat passes up lthe tube E, in which tube another valve, H,

regulates the draft of air. The cheat will settle on valve b and drop through it, and the cha and dust willopass up through tube D and down through tube C into the fan-house and out.

In tube D is another valve, H, for regulating the draft. v

L', L2, and L3 represent metal coversin the tube.

L4 and L5 represent the metal inelosure of the fau-house.

A A represent the fan, and J the pulley.

l I l and c represent the sides of the tube.

M M N represent the cords to set the valves.

N represents the spout for the discharge of the wheat from tube lil, valve O.

X represents the inside bearing of the fan improvement.

For the purpose of' throwing the wheatinto the sides l0 IO, I change the valves H in tube E, und the valve H in tube D, from where they are shown on drawing No. 2, and place them on the opposite sides l l of tubes E and l). By this change the draft is facilitated, andthe wheat slides better upon the valves a and I1.

The valves g, changed. are marked red and figured Y Y qu drawing No. 2.

Operation: The fan A creates a draft through the entire tube. By letting the wheat into the angular tube F by means ot' a corrugated hopper, K, the draft is compelled to pass through it crosswise, throwing out the 'lighter parts ot' wheat of about fifty POUUS,

and all the dust, chai', and cheat. The light| wheat in passing up the tube F settles on valve a and passes through it and valve O, while the goed wheat drops through tube G. The cheat, chad', and dust pass on through tube E and deposit the cheat on valve c and the spout N. The chatl and dust pass through tubes C and D, and from there into the 'anhouse and out. l

What I claim as my invention, and desire to secure by Letters Patent, is-

rPhe combination of the corrugated hopper K with the angular tube F E D and valves H H O a and b, all arranged and operating substantially as and for the purpose shown and described.

THOMAS vv. ravis.

Witnesses N. P. HOLMES, J. M. L. SMITHMYER. 

